Cosmo GRP Series User manual

Rev.23.06
COS-GRP486G
GAS RANGE
COS-GRP304
COS-GRP366
READ AND SAVE THESE INSTRUCTIONS.
FOR RESIDENTIAL USE ONLY.
PLEASE LEAVE THESE INSTRUCTIONS WITH THIS UNIT FOR
THE OWNER.
PLEASE RETAIN THESE INSTRUCTIONS FOR FUTURE
REFERENCE.
IMPORTANT:
INSTALLER:
OWNER:
GRP SERIES SLIDE-IN RANGE
USER MANUAL

2
THANK YOU FOR YOUR PURCHASE
Thank you for your purchase. We know that you have many brands and
products to choose from and we are honored to know that you have decided
to take one of our products into your home and hope that you enjoy it.
COSMO Appliances are designed according to the strictest safety and
performance standard for the North American market. We follow the most
advanced manufacturing philosophy. Each appliance leaves the factory after
thorough quality inspection and testing. Our distributors and our service
partners are ready to answer any questions you may have regarding how to
install, use and care for your products. We hope that this manual will help you
learn to use the product in the safest and most effective manner.
Before using this product, please read through this manual carefully. Keep
this user manual in a safe place for future reference. Please ensure that other
persons using this product are familiar with these instructions as well.
If you have any questions or concerns, please contact the dealer from whom you
purchased the product, or contact our Customer Support at:
1-888-784-3108
Reach us online at:
www.cosmoappliances.com

3
RANGE SAFETY.................................................................................................... 4
Anti-tip Device ........................................................................................................... 6
Important Safety Instructions ................................................................................. 7
OVERVIEW...........................................................................................................11
Range Layout ............................................................................................................ 12
Control Panel ............................................................................................................ 13
FEATURES ...........................................................................................................14
OPERATION........................................................................................................15
Gas Surface Burners ................................................................................................15
Before Using the Gas Surface Burners ............................................................15
Using the Gas Surface Burners .........................................................................16
Using the Proper Cookware...............................................................................18
Oven ..........................................................................................................................20
Before Using the Oven ......................................................................................20
Before Using the Oven for the First Time .......................................................20
Oven Vent ............................................................................................................. 21
Using Oven Racks ................................................................................................ 21
Preheating ........................................................................................................... 22
Oven Controls ..................................................................................................... 23
Bake ...................................................................................................................... 24
Broil ....................................................................................................................... 25
Convection Bake................................................................................................. 26
Tips and Techniques .......................................................................................... 27
RANGE CARE AND MAINTENANCE.................................................................. 29
Cleaning.................................................................................................................... 29
TROUBLESHOOTING......................................................................................... 32
Cooktop Problems................................................................................................... 32
Oven Problems ........................................................................................................ 34
Baking Problems...................................................................................................... 35
LIMITED WARRANTY ........................................................................................ 37
TABLE OF CONTENTS

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RANGE SAFETY
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on
your appliance. Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards
that can kill or hurt you and others.
All safety messages will follow the safety alert
symbol and either the word "WARNING" or
"CAUTION." These words mean:
You can be killed or seriously injured if you
don't follow instructions.
A potentially hazardous situation which, if not
avoided, could result in minor or moderate
injury.
All safety messages will tell you what the potential hazard is, tell you how
to reduce the chance of injury, and tell you what can happen if the
instructions are not followed.
In the State of Massachusetts, the following installation instructions apply:
•Installations and repairs must be performed by a qualified or licensed
contractor, plumber, or gasfitter qualified or licensed by the State of
Massachusetts.
•If using a ball valve, it shall be a T-handle type.
•A flexible gas connector, when used, must not exceed 3 feet.
California Proposition 65 Warning
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
WARNING
CAUTION

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FIRE AND EXPLOSION HAZARD
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or death.
-Do not store or use gasoline or other flammable vapors and liquids in
the vicinity of this or any other appliance.
-WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electrical switch.
•Do not use any phone in your building.
•Clear the room, building, or area of all occupants.
•Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
•If you cannot reach your gas supplier, call the fire department.
-Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
Never Operate the Top Surface Cooking Section of this Appliance
Unattended.
•Failure to follow this warning statement could result in fire, explosion,
or burn hazard that could cause property damage, personal injury, or
death.
•If a fire should occur, keep away from the appliance and immediately
call your fire department.
DO NOT ATTEMPT TO EXTINGUISH AN OIL/GREASE FIRE WITH WATER.
WARNING
WARNING

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WARNING: Gas leaks cannot always be detected by smell.
Gas suppliers recommend that you use a gas detector approved by UL or
CSA. For more information, contact your gas supplier.
WARNING: Do not install a ventilation system that blows air downward
toward this cooking appliance. This type of ventilation system may cause
ignition and combustion problems with this cooking appliance resulting in
personal injury or unintended operation.
WARNING: This appliance is intended for normal residential use. It is not
approved for commercial use, outdoor installation, or any other application
not specifically allowed by this manual.
Making sure the anti-tip bracket is installed:
•Slide range forward.
•Safely tilt the front of the range upward
slightly and slide range back.
•Making sure the pin slides under the anti-tip
bracket.
•A child or adult can tip the range and be killed.
•Install anti-tip bracket to wall per installation instructions.
•Slide range back so rear range pin is under the anti-tip bracket.
•Re-engage the anti-tip bracket if range is moved.
•Do not operate the range without anti-tip bracket installed and
engaged.
•Failure to follow these instructions can result in death or serious burns to
children and adults.
WARNING
TIP OVER HAZARD

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IMPORTANT SAFETY
INSTRUCTIONS
WARNING: To reduce the risk of fire, electrical shock, injury to persons, or
damage when using the range, follow basic precautions, including the
following:
•WARNING: TO REDUCE THE
RISK OF TIPPING OF THE RANGE,
THE RANGE MUST BE SECURED
BY PROPERLY INSTALLED ANTI-
TIP DEVICES. TO CHECK IF THE
DEVICES ARE INSTALLED
PROPERLY, SLIDE RANGE
COMPLETELY FORWARD, LOOK
FOR ANTI-TIP BRACKET
SECURELY ATTACHED TO THE
FLOOR OR WALL, AND SLIDE
RANGE BACK SO THE REAR
RANGE FOOT IS UNDER ANTI-
TIP BRACKET.
•WARNING: NEVER use this
appliance as a space heater to
heat or warm the room. Doing
so may result in carbon
monoxide poisoning and
overheating of the oven.
•WARNING: NEVER cover any
slots, holes or passages in the
oven bottom or cover an entire
rack with materials such as
aluminum foil. Doing so blocks
airflow through the oven and
may cause carbon monoxide
poisoning. Aluminum foil linings
may also trap heat, causing a
fire hazard.
•CAUTION: Do not store items of
interest to children in cabinets
above a range or on the back
guard of a range – children
climbing on the range to reach
items could be seriously injured.
•Do Not Leave Children Alone –
Children should not be left alone
or unattended in area where
range is in use. They should
never be allowed to sit or stand
on any part of the range.
•Wear Proper Apparel – Loose-
fitting or hanging garments
should never be worn while
using the range.
•User Servicing – Do not repair or
replace any part of the range
unless specifically recommended
in the manual. All other servicing
should be referred to a qualified
technician.
•Storage in or on Range –
Flammable materials should not
be stored in an oven or near
surface units.
•This appliance is not intended
for storage.
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8
IMPORTANT SAFETY
INSTRUCTIONS
•Do Not Use Water on Grease
Fires – Smother fire or flame or
use dry chemical or foam-type
extinguisher.
•Use Only Dry Potholders – Moist
or damp potholders on hot
surfaces may result in burns
from steam. Do not let potholder
touch hot heating elements. Do
not use a towel or other bulky
cloth.
•Never Leave Surface Units
Unattended at High Heat
Settings – Boilover causes
smoking and greasy spillovers
that may ignite.
•Glazed Cooking Utensils – Only
certain types of glass,
glass/ceramic, ceramic,
earthenware, or other glazed
utensils are suitable for range-
top service without breaking due
to the sudden change in
temperature.
•Utensil Handles Should Be
Turned Inward and Not Extend
Over Adjacent Surface Units – To
reduce the risk of burns, ignition
of flammable materials, and
spillage due to unintentional
contact with the utensil, the
handle of a utensil should be
positioned so that it is turned
inward, and does not extend
over adjacent surface units.
•Disconnect power before
servicing.
•Proper Installation – The
appliance, when installed, must
be electrically grounded in
accordance with local codes, or
in the absence of local codes,
with the National Electrical
Code, ANSI/NFPA 70 or the
Canadian Electrical Code, CSA
C22.1-02. In Canada, the
appliance must be electrically
grounded in accordance with
Canadian Electrical Code. Be
sure your appliance is properly
installed and grounded by a
qualified technician.
•Injuries may result from misuse
of appliance doors or drawers
such as stepping, leaning, or
sitting on the doors or drawers.
•Maintenance – Keep range area
clear and free from combustible
materials, gasoline, and other
flammable vapors and liquids.
•Do not let cooking grease or
other flammable materials
accumulate in or near the range.
Grease in the oven or on the
cooktop may ignite.
•Top burner flame size should be
adjusted so it does not extend
beyond the edge of the cooking
utensil. This instruction is based
on safety considerations.
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9
IMPORTANT SAFETY
INSTRUCTIONS
•Do not use replacement parts
that have not been
recommended by the
manufacturer (e.g. parts made
at home using a 3D printer).
•Clean Cooktop With Caution – If
a wet sponge or cloth is used to
wipe spills on a hot cooking
area, be careful to avoid steam
burn. Some cleaners can
produce noxious fumes if
applied to a hot surface.
•Use Care When Opening Door –
Let hot air or steam escape
before removing or replacing
food.
•Do Not Heat Unopened Food
Containers – Build-up of
pressure may cause container to
burst and result in injury.
•Keep Oven Vent Ducts
Unobstructed.
•Never broil with door open.
Open-door broiling is not
permitted due to overheating of
control knobs.
•Placement of Oven Racks –
Always place oven racks in
desired location while oven is
cool. If rack must be moved
while oven is hot, do not let
potholder contact hot heating
element in oven.
•Care must be taken to prevent
aluminum foil and meat probes
from contacting heating
elements.
•DO NOT TOUCH HEATING
ELEMENTS OR INTERIOR
SURFACES OF OVEN – Heating
elements may be hot even
though they are dark in color.
Interior surfaces of an oven
become hot enough to cause
burns. During and after use, do
not touch, or let clothing or other
flammable materials contact
heating elements or interior
surfaces of oven until they have
had sufficient time to cool. Other
surfaces of the appliance may
become hot enough to cause
burns – among these surfaces
are cooktop, burners, grates,
oven vent openings and surfaces
near these openings, oven
doors, windows of oven doors,
and crevices around the oven
doors.
•Top burner flame size should be
adjusted so it does not extend
beyond the edge of the cooking
utensil.
•Have the installer show you the
location of the range gas shut-
off valve and how to turn it off if
necessary.
READ AND SAVE THESE INSTRUCTIONS

10
IMPORTANT SAFETY
INSTRUCTIONS
•Proper Disposal of Your
Appliance – Dispose of or recycle
your appliance in accordance
with Federal and Local
Regulations. Contact your local
authorities for the
environmentally safe disposal or
recycling of your appliance.
•Do Not Clean Door Gasket – The
door gasket is essential for a
good seal. Care should be taken
not to rub, damage, or move the
gasket.
•Do Not Use Oven Cleaners – No
commercial oven cleaner or
oven liner protective coating of
any kind should be used in or
around any part of the oven.
•Clean Only Parts Listed in
Manual.
For units with ventilating hood –
•Clean Ventilating Hoods
Frequently – Grease should not
be allowed to accumulate on
hood or filter.
•When flambé cooking under the
vent hood, turn the fan on.
For self-cleaning ranges –
•Before Self-Cleaning the Oven –
Remove broiler pan and other
utensils. Wipe off all excessive
spillage before initiating the
cleaning cycle.
•Wait for the oven to cool before
removing contents and cleaning
the oven.
•In the event of ignition inside the
oven during self-clean, turn off
the oven and wait for the fire to
extinguish. DO NOT FORCE THE
DOOR OPEN.
•If the self-cleaning mode
malfunctions, keep door closed,
turn off the appliance,
disconnect the circuit at the
circuit breaker box, and contact
a qualified service provider for
repairs.
•Some birds are extremely
sensitive to the fumes produced
during a self-clean cycle. Move
birds to another well-ventilated
room.
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11
OVERVIEW
RANGE LAYOUT
The range you have purchased may have some or all of the items listed. The
locations and appearances of the features shown here may not match those
of your model.
1. Oven Vent
2. Surface Burner
3. Rear Rubber Pad
4. Control Panel
5. Convection Fan
6. Door Gasket
7. Bake Burner Cover
8. Leveling Leg Cover
9. Grate
10. Oven Indicator
Light
11. Oven Light
12. Rack Positions
13. Door Hinge
14. Oven Door Window
15. Oven Door Handle

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WHAT'S INCLUDED
Surface burner grates
30" Model: COS-GRP304 (3)
36" Model: COS-GRP366 (3)
48" Model: COS-GRP486G (4)
Surface burners and caps
30" Model: COS-GRP304 (4)
36" Model: COS-GRP366 (6)
48" Model: COS-GRP486G (8)
Oven racks (2)
Griddle
48" Model: COS-GRP486G
OPTIONAL PARTS
NOTE:
•Stylish color handle & knob kits
•To purchase these or any other accessories or replacement parts,
please visit www.cosmoappliances.com or reference the contact
information at the end of this manual.
Scan to find
available
handle & knob
kits

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CONTROL PANEL
Cooktop Oven Cooktop Oven
Oven Light
(18" Sub)
Cooktop
Oven Light &
Convection Fan
(30" Main)
Cooktop Oven Cooktop
Convection
Fan
Oven
Light
Cooktop Oven Cooktop
Convection
Fan
Oven
Light
COS-GRP304 (30")
COS-GRP366 (36")
COS-GRP486G (48")

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FEATURES
CONVECTION FAN
The convection fan increases air movement and circulates heat within the
oven to improve heat distribution on multiple racks and enhance cooking
evenness while cooking with single or multiple racks. Cooking times may be
slightly longer for multiple racks than what would be expected for a single
rack.
•Press Convection Fan to turn the oven convection fan on or off.
NOTE:
•The convection fan turns on for Bake mode only.
LIGHT
The oven lights automatically turn on when the door is opened and turn off
when the door is closed.
•Press Light to manually turn the oven lights on or off.
OVEN INDICATOR LIGHT
The oven indicator light automatically turns on when the oven is heating. The
oven burner cycles on and off to maintain the set temperature. When the set
temperature is reached, the oven indicator light will temporarily turn off until
the heating cycle is activated to maintain the set temperature.
Oven indicator light

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GAS SURFACE BURNERS
BEFORE USING THE GAS SURFACE BURNERS
Read all instructions before using.
•Make sure all burners are in their correct locations and fully assembled
before attempting to operate any burner.
•Never leave the surface burners on unattended. Boilovers may cause
smoke and greasy spillovers that may ignite.
•Do not use aluminum foil to line or cover the cooktop, grates, or any
other part of the cooktop. Doing so may result in carbon monoxide
poisoning, overheating of the cooktop surfaces, or fire.
•Use the proper pan size. Do not use pans that are unstable or that can
be easily tipped. Select cookware with flat bottoms large enough to
cover burner grates.
•To avoid spillovers, make sure the cookware is large enough to contain
the food properly. This will both save cleaning time and prevent
hazardous accumulations of food, since heavy spattering or spillovers
left on the range can ignite.
•Control the top burner flame size so it does not extend beyond the edge
of the cookware. Excessive flame is hazardous.
•Do not operate the burner for an extended period of time without
cookware on the grate. The finish on the grate may discolor or chip
without cookware to absorb the heat.
•Do not attempt to disassemble any burner while another burner is on.
Damage to the product may occur.
•Be sure the burners and grates are cool before you place your hand, a
pot holder or cleaning materials on them.
WARNING
CAUTION
OPERATION

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IMPORTANT:
USING THE GAS SURFACE BURNERS
Lighting a Surface Burner
NOTE:
1. Select a burner and find its control knob.
2. Push the control knob in and turn it to the IGNITE position. The electric
spark ignition system will make a clicking noise.
•The use of a gas-cooking appliance results in the production of heat and
moisture in the roomin which it is installed. Ensure that the kitchen is well
ventilated: keep natural ventilation holes open or install a mechanical
ventilation device (mechanical extractor hood).
•Prolonged intensive use of the appliance may call for additional
ventilation, for example opening of a window, or more effective
ventilation, for example increasing the level of mechanical ventilation
where present.
OFF position
•When one burneris turned to IGNITE, all burners will spark.
Sparking will continue as long as the knob remains at IGNITE.
•For COS-GRP486G (48") only:
When one burner on the left or the right side is turned to IGNITE,
the other 3 burners on the same side will spark.
IGNITE position HI position LO position
3. Once gas is ignited, turn the control knob to adjust the flame size.
4. To turn off a burner, turn the control knob to the OFF position.
OFF HI LO

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Selecting a Flame Size
Watch the flame, not the control knob, as you reduce heat. Match the flame
size on a gas burner to the cookware being used for fastest heating.
NOTE:
•Never let the flames extend up the sides of the cookware. Flames larger
than the bottom of the cookware will not heat faster and may be
hazardous.
In Case of Power Failure
In case of a power failure, you can light the gas surface burners on your range
with a match. Surface burners in use when an electrical power failure occurs
will continue to operate normally.
1. Using extreme caution, hold a lit match to the burner
2. Push in the control knob, then turn the control knob to the Lo position.
3. Once gas is ignited, turn the control knob to adjust the flame size.

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USING THE PROPER COOKWARE
Aluminum
Medium-weight cookware is recommended because it heats quickly and
evenly. Most foods brown evenly in an aluminum skillet. Use saucepans with
tight fitting lids when cooking with minimum amounts of water.
Cast-Iron
If heated slowly, most skillets will give satisfactory results.
Stainless Steel
This metal alone has poor heating properties and is usually combined with
copper, aluminum or other metals for improved heat distribution.
Combination metal skillets work satisfactorily if they are used with medium
heat as the manufacturer recommends.
Enamelware
Under some conditions, the enamel of this cookware may melt. Follow
cookware manufacturer’s recommendations for cooking methods.
Glass
There are two types of glass cookware. Those for oven use only and those for
top-of-range cooking.
Heatproof Glass Ceramic
Can be used for either surface or oven cooking. It conducts heat very slowly
and cools very slowly. Check cookware manufacturer’s directions to be sure it
can be used on gas ranges.
BALANCED PAN
UNBALANCED
PAN
CONVEX
(ROUNDED)
CONCAVE
(HOLLOW)
USE LIDS THAT
FIT PROPERLY
FLAME TOO LARGE
FORPAN SIZE

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NOTE:
•The flame should not extend beyond the bottom edge of the cookware.
Oversized cookware that spans two burners should be placed front to
rear, not side to side.
•Use balanced cookware that sits level on the cooktop grate without
rocking. Center the cookware over the burner.
•Use a lid that fits properly. A well-fitting lid helps shorten the cooking
time.
•Match the size of the cookware to the amount of food being cooked to
save energy when heating.
•Do not use stove top grills on the surface burners. Using a stove top grill
on the surface burner will cause incomplete combustion and can result
in exposure to carbon monoxide levels above allowable current
standards. This can be a health hazard.
•If using a wok, use only a flat-bottomed wok with diameter of 14 inches
or less. Make sure that the wok bottom sits flat on the grate.
•Do not use a wok support ring. Placing the ring over the burner or grate
may cause the burner to work improperly, resulting in carbon monoxide
levels above allowable standards. This can be hazardous to your
health.

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OVEN
BEFORE USING THE OVEN
Read all instructions before using.
CAUTION
•Do not use any type of foil or oven liner to cover the oven bottom. These
items can trap heat or melt, resulting in damage to the product and risk
of shock, smoke or fire. Damage from improper use of these items is not
covered by the product warranty.
•Foil may be used to catch spills by placing a sheet on a lower rack,
several inches below the food. Do not use more foil than necessary and
never entirely cover an oven rack with aluminum foil. Keep foil at least
1-1/2" (3.8 cm) from oven walls to prevent poor heat circulation.
•Do not block, touch or place items around the oven vent during
cooking. Your oven is vented through ducts at the center above the
burner grate. Do not block the oven vent when cooking to allow for
proper air flow.
•In case of power failure, do not use the oven. The oven and broiler
cannot be used during a power outage. If the oven is in use when a
power failure occurs, the oven burner shuts off and cannot be re-lit until
power is restored. Once power is restored, you will need to reset the
oven cooking mode.
•Do not attempt to operate the electric ignition during an electrical
power failure.
•As the oven heats up, the heated air in the oven may cause
condensation to appear on the oven door glass. These water drops are
harmless and will evaporate as the oven continues to heat up.
•An air curtain or other overhead range hood, which operates by
blowing a downward airflow onto a range shall not be used in
conjunction with a gas range.
BEFORE USING THE OVEN FOR THE FIRST TIME
Start the oven in BAKE mode at the highest available temperature setting.
Allow oven to run for 1 hour to remove any dust or impurities. There will be a
distinctive odor - this is normal. Ensure your kitchen is well ventilated during
this conditioning period.